Structural study of Al-substituted nickel hydroxide

Wang, Caiyun; Zhong, Shengwen; Konstantinov, Konstantin; Walter, G.; Liu, H.K

doi:10.1016/s0167-2738(02)00095-4

Cited by 57 publications

(42 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Recent attempts to improve the performance of LiCoO 2 by means of doping or coating have shown promising results for obtaining higher capacity with enhanced stability of the LiCoO 2 electrodes. Such modifications led to either improved capacity retention characteristics by suppressing the surface reactions of LiCoO 2 particles or higher achievable specific capacity by increasing the upper limit of the intercalation voltage through the formation of stronger M O bonds and to stabilize the layered structure in its fully delithiated state [6]. Therefore, bulk doping and surface modification have been the strategies to improve the electrochemical performance of LiCoO 2 electrode.…”

Section: Introductionmentioning

confidence: 99%

Microwave assisted synthesis and electrochemical behaviour of LiMg0.1Co0.9O2 for lithium rechargeable batteries

Zaheena

Nithya

Thirunakaran

et al. 2009

Electrochimica Acta

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Microwave assisted synthesis and electrochemical behaviour of LiMg0.1Co0.9O2 for lithium rechargeable batteries

Zaheena

Nithya

Thirunakaran

et al. 2009

Electrochimica Acta

View full text Add to dashboard Cite

“…The negative electrode was metal hydride (MH) one. A mixture of 6 mol/L KOH and 18 g/L LiOH was used as the electrolyte [10,11]. Charge/discharge measurements were conducted using a Land CT2001 C battery performance-testing instrument.…”

Section: Preparation Of Nickel Electrode and Electrochemical Testingmentioning

confidence: 99%

Synthesis and electrochemical performance of α-nickel hydroxide codoped with Al3+ and Ca2+

Chang-jiu

Chen

2011

Ionics

View full text Add to dashboard Cite

a-Nickel hydroxide codoped with Al 3+ and Ca 2+ was prepared by chemical coprecipitation method. The phase structure and surface morphology of the prepared samples were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM). The electrochemical performances of the prepared samples were analyzed by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and charge/discharge tests. XRD and SEM tests reveal that the Al 3+ /Ca 2+ codoped a-nickel hydroxide has a relatively good crystallization and a very coarse surface. Electrochemical tests show that the Al 3+ /Ca 2+ codoped a-nickel hydroxide has higher proton diffusion coefficient, lower electrochemical reaction resistance, and higher discharge capacity (395.3 mAh g −1 at 0.2 C) than the Al 3+ singly doped a-nickel hydroxide, which indicates its potential application as an electrode material for secondary alkaline batteries.

show abstract

“…LiNi 1-x Co x O 2 has drawn much attention from many research groups owing to the improved electrochemical properties with higher capacity and better cycleability. The existence of Co is one of the key factors to stabilize the crystal structure of LiNi 1-x Co x O 2 [20]. Among them LiNi 0.5 Co 0.5 O 2 is more attractive and is used as cathode material for lithium rechargeable batteries as reported by many researchers [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Role of Mg dopant on the electrochemical performance of LiNi0.5Co0.5O2 cathode materials for lithium rechargeable batteries

Nithya

Devi²,

Gopukumar

2012

J Mater Sci

View full text Add to dashboard Cite

Positive electrode materials, LiMg x Ni 0.5-x Co 0.5 O 2 (x = 0 \ x \ 0.5), have been successfully synthesized by microwave-assisted solution technique. The precursor has been analyzed by TG/DTA and the powder was calcined at 850°C. The XRD patterns reveal that the synthesized materials exhibit hexagonal layered structure corresponding to R3m space group. Coin cells of 2016 type have been fabricated using the synthesized layered material as cathode active material and lithium foil used as counter and reference electrode. Test cells were operated in the potential limits between 2.7 and 4.3 V using 1 M LiPF 6 in 1:1 EC/DEC as electrolyte. LiMg 0.2 Ni 0.3 Co 0.5 O 2 material delivers an average discharge capacity of around 165 mA hg -1 at 0.1 C rate over the investigated 20 cycles.

show abstract

Structural study of Al-substituted nickel hydroxide

Cited by 57 publications

References 9 publications

Microwave assisted synthesis and electrochemical behaviour of LiMg0.1Co0.9O2 for lithium rechargeable batteries

Microwave assisted synthesis and electrochemical behaviour of LiMg0.1Co0.9O2 for lithium rechargeable batteries

Synthesis and electrochemical performance of α-nickel hydroxide codoped with Al3+ and Ca2+

Role of Mg dopant on the electrochemical performance of LiNi0.5Co0.5O2 cathode materials for lithium rechargeable batteries

Contact Info

Product

Resources

About